They mentioned this during the product announcement. It has completely different cooling, with dual centrifugal fans. http://live.arstechnica.com/apples-wwdc-2017-keynote-liveblo... (From the Ars liveblog http://live.arstechnica.com/apples-wwdc-2017-keynote-liveblo... )

Anyone buying a $5000 rev 1 Apple product knows what's going to happen...

The liquid cooled Mac Pro G5 I used to own agrees with you...

Let's take all the heat issues from the traschan pro, strap on a 5k display and put it into a consumer-level shell. Yeah... heat will be a problem.

The "consumer-level" shell is a 27" Aluminum heatsink.

You mistyped "frying pan".

Flat aluminum is not a heatsink, you need surface to shed heat, which is why heatsinks generally have fins and the like. Flat aluminum sheds heat better than plastic but it's not very good at it.

> Flat aluminum sheds heat better than plastic but it's not very good at it.

That's why it is a 27" heatsink instead of a 2" one.

Most of the heat is going to be moved out by the dual fans anyway. The Aluminum will dissipate what it picks up from the moving air before it leaves the chassis by the side vents.

* 8 Core Intel Xeon

* Radeon Vega graphics

* 500 Watt power supply